The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 1989
Filed:
Mar. 09, 1988
Masafumi Uchida, Hachioji, JP;
Hiroyuki Takagiwa, Hachioji, JP;
Satoru Ikeuchi, Hachioji, JP;
Hideyo Nishikawa, Wakayama, JP;
Shingo Tanaka, Wakayama, JP;
Kuniyasu Kawabe, Wakayama, JP;
Konica Corporation, both of, JP;
Kao Corporation, both of, JP;
Abstract
A toner for developing electrostatic latent images which comprises a colorant and two kinds of polyester is disclosed. The fFirst polyester is a nonlinear polyester that is composed of monomers including monomers of trivalence or higher valency and which satisfies the following conditions A1 and A2, the second polyester is a nonlinear polyester that is composed of monomers including monomers of trivalence or higher valency and which satisfies the following conditions B1 and B2, and the difference between the softening points of said first and second polyesters is at least 10.degree. C.